Portable wireless speaker



FIG. 1 is a front elevational view of a portable wireless speaker showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is another perspective view thereof;

FIG. 9 is a front elevational view of a portable wireless speaker showing in open state;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a right side view thereof;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof;

FIG. 15 is a perspective view thereof; and,

FIG. 16 is another perspective view thereof. 

CLAIM The ornamental design for a portable wireless speaker, as shown and described. 